ZiGGURAT

Last but not least: Ziggurat, a retro-style shooter that imagines you’re the world’s last fighter, standing atop a mountain, fending off robots attacking from all angles. You can play in one of two modes: Precision or Slingshot. The former lets you calculate your firing angle before letting rip, while the latter lets you attack Angry Birds-style, as if drawing back a slingshot.